<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>

        /* 弹性布局 面试题 */

        body {
            margin: 0;
        }

        aside {
            width: 200px;
            height: 100vh;
            background-color: #333;
            float: left;
        }
        main {
            width: calc(100% - 200px);
            height: 100vh;
            background-color: #666;
            float: left;
        }
    </style>
</head>
<body>
    <!-- 语义化标签 -->
    <aside></aside>
    <main></main>
</body>
</html>